67 lines
2.6 KiB
TypeScript
67 lines
2.6 KiB
TypeScript
import { JSONRPCResponsePayload } from '@0xproject/types';
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import * as chai from 'chai';
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import * as _ from 'lodash';
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import Web3 = require('web3');
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import Web3ProviderEngine = require('web3-provider-engine');
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import RpcSubprovider = require('web3-provider-engine/subproviders/rpc');
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import { RedundantRPCSubprovider } from '../../src';
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import { DoneCallback } from '../../src/types';
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import { chaiSetup } from '../chai_setup';
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import { reportCallbackErrors } from '../utils/report_callback_errors';
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import { subprovider as ganacheSubprovider } from '../utils/subprovider';
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const expect = chai.expect;
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chaiSetup.configure();
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describe('RedundantRpcSubprovider', () => {
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let provider: Web3ProviderEngine;
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it('succeeds when supplied a healthy endpoint', (done: DoneCallback) => {
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provider = new Web3ProviderEngine();
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const endpoints = ['http://localhost:8545'];
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const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
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// Hack: Hot-swap rpc with ganacheSubprovider
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(redundantSubprovider as any)._rpcs = [ganacheSubprovider];
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provider.addProvider(redundantSubprovider);
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provider.start();
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const payload = {
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jsonrpc: '2.0',
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method: 'eth_accounts',
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params: [],
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id: 1,
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};
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const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
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expect(err).to.be.a('null');
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expect(response.result.length).to.be.equal(10);
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done();
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});
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provider.sendAsync(payload, callback);
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});
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it('succeeds when supplied at least one healthy endpoint', (done: DoneCallback) => {
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provider = new Web3ProviderEngine();
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const endpoints = ['http://does-not-exist:3000', 'http://localhost:8545'];
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const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
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// Hack: Hot-swap rpcs with [nonExistentSubprovider, ganacheSubprovider]
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const nonExistentSubprovider = new RpcSubprovider({
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rpcUrl: 'http://does-not-exist:3000',
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});
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(redundantSubprovider as any)._rpcs = [nonExistentSubprovider, ganacheSubprovider];
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provider.addProvider(redundantSubprovider);
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provider.start();
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const payload = {
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jsonrpc: '2.0',
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method: 'eth_accounts',
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params: [],
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id: 1,
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};
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const callback = reportCallbackErrors(done)((err: Error, response: JSONRPCResponsePayload) => {
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expect(err).to.be.a('null');
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expect(response.result.length).to.be.equal(10);
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done();
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});
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provider.sendAsync(payload, callback);
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});
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});
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